CVE-2026-41253
6.9 · MEDIUMOverview
CVE-2026-41253 is a medium-severity vulnerability affecting iterm2 iterm2. It was published on April 18, 2026 and has a CVSS 3.1 base score of 6.9 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
In iTerm2 through 3.6.9, displaying a .txt file can cause code execution via DCS 2000p and OSC 135 data, if the working directory contains a malicious file whose name is valid output from the conductor encoding path, such as a pathname with an initial ace/c+ substring, aka "hypothetical in-band signaling abuse." This occurs because iTerm2 accepts the SSH conductor protocol from terminal output that does not originate from a legitimate conductor session.
Remediation
Check the references section for vendor advisories and patches from iterm2. Update iterm2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| iterm2 | iterm2 | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-41253?
CVE-2026-41253 is a medium-severity vulnerability affecting iterm2 iterm2. It was published on April 18, 2026 and has a CVSS 3.1 base score of 6.9 (MEDIUM).
How severe is CVE-2026-41253?
This vulnerability has a CVSS 3.1 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-41253?
Check the references section for vendor advisories and patches from iterm2. Update iterm2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-41253?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-41253 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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